Clock-winding mechanism.



J. H. BOYLE.

CLOCK WINDING MECHANISM. APPLICATION FILED NOV. 7. 1916.

1,300, 1 1 3, Patented Apr. 8,1919.

2 SHEETSSHEET I.

J. H. BOYLE.

CLOCK WINDING MECHANISM.

APPLICATION FILED NOV-711916.

Patented Apr. 8, 1919.

2 SHEETSSHEET 2 JOHN H. BOYLE, OF NEW HAVEN, CONNECTICUT.

CLOCK-WINDING MECHANISM.

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed November 7, 1916. Serial No. 130,001.

To all whom it may concern:

Be it known that I, JOHN H. BOYLE, a

- citizen of the United States, residing at New Haven, in the county ofNew Haven and State of Connecticut, have invented certain new and useful Improvements in Clock- Winding Mechanism, of which the following is a specification. V

The present invention relates to the class of horology and has particular reference to new and useful improvements in mainand alarm spring winders for clocks and the like. i

As at present constructed and in general use when it is desired to wind the main and alarm springs of a clock a pair of winding spindles must be provided which necessarily interrupts the face of the clock and mars the figures thereon.

It is therefore an objectof my invention to provide means for winding the alarm and time or main springs of a clock from a single winding spindle which may be located beneath the face of the clock remote from the mechanism.

Another object of my invention is to provide an arrangement of the class referred to which is simple in construction, strong and durable and effective in operation.

A further object of my invention is to provide means for preventing unwinding of one of the springs while the other spring is being wound.

Other objects and advantages to be derived from the use of my improved winding mechanism for clock springs will appear from the following detailed description and the claims, taken with an inspection of the accompanying drawings, in which:

Figure 1 is a side elevation of a portion of the mechanism of a clock embodying the improvements of my invention;

Fig. 2 is an enlarged view showing the springs removed;

Fig. 3 is a rear fragmental elevational view of the winding mechanism of my invention;

Fig. 4 is an enlarged fragmental sectional view of the main winding spindle, and the 1 gears transmitting power therefrom;

Fig. 5 is an enlarged elevation of the main spring spindle.

Fig. 6 is an enlarged longitudinal section of the alarm spring spindle;

Fig. 7 is an enlarged detailed perspective of the ratchet member for association with the spring spindles; and

Fig. 8 is an enlarged transverse sectional view of the main spring drum, showing a portion of the spring.

Referring more particularly to the drawings, wherein similar characters of reference designate like and corresponding p. rts throughout the various views, 10 and 11 deslgnate the supporting frames, rear and front, respectively, of my improved winding mechanism. Supporting frames for the clock-work mechanism are designated 12 and 13, the frame 13 being carried by the frame 11 by means of bolts 14 or the like.

My invention essentially resides in the provision of a main winding spindle 15 mounted in suitable bearings formed in the frames 10 and 11, the free end of the spindle 15 being squared as at 16 and projecting from the clock housing (not shown) below the face of the clock topermit application of a key thereto.

Ashaft 18 is mounted in suitable bearings carried by the frames 10 and 11 in a plane above the spindle 15, said shaft having a main spring drum 19 thereon rotatable therewith. The main spring 21 is secured to the drum 19 by a ratchet mechanism hereinafter described. A sprocket wheel 22 is carried by the rear free end of the drum 19, said sprocket wheel having a chain 23 trained thereover, said chain also being trained over a sprocket carried on the spindle 15.

An alarm spring drum 24 is mounted on the shaft 18 and rotatable independently thereof, said drum having a spring anchor projection 25 thereon to which one end of the alarm spring 26 is to be attached. An annular enlargement 27 is formed on the rear free end of the drum 24 and a plurality of recesses 28 are formed in the rear face of the drum. A pawl carrying member 29 in the form of a disk is receivable on the shaft 18 and rotatable with the drum 19, any suitable means being provided for rigidly connecting said disk to said drum. A plurality of spring pawls 30 are struck from the disk 29 and are adapted to normally engage the recesses 28 in the drum 24.

Referring specifically to Figs. 5 and 8 it will be seen that I have provided means for connecting the main spring, at times, to the drum 19, said means including a tubular member 32 rotatable upon the drum 19, said drum being provided with a recess 33 in which a spring operated pawl 34 carried by the tube 32 is adapted to engage. One end of the spring 21 is connected to the tube 32 as indicated at 35. The operation of this portion of the device will appear hereinafter.

Power is transmitted from the sprlng members 21 and 26 by means of gear wheels 37 and 38, the gear 37 being carried by the shaft 18 and the gear 38 by the drum 2 1.

The movement section of the clock embodying the improvements of my invention is carried between the frame members 12 V and 13, andmotion is imparted thereto by means of a pair of shafts 39' and 40, the shaft 39 having a pinion 41 on the inner end thereof to engage the gear 37, and the shaft 40 having a pinion 12 on its inner end to engage the gear 38. The gears i3 and 4E4 carried by the shafts 39 and 40, respectively, transmit motion directly to the movement and alarm'sections of the clock. To prevent the springs 21 and 26 from unwinding when either-0f the same is being wound I provide ratchet wheels 46 and 4:7 carried by the shafts 39 and 40, respectively. The wheels L6 and 4:7 are oppositely disposed and are engaged by pawls 18 and 49 carried by the frame 12. V

The pawls serve'to engage their respective wheels upon a tendency of the same to reverse rotation, that is, "the pawls permit the normal rotation of the shafts 39 and 40 'to operate the movement and alarm mechanism of the clock but prevent reverse rotation of said-"shaft."

drum 24 remains stationary, the pawls 30 not engaging the recesses 28. The pawl 49 prevents the alarm spring 26 from unwind- Alfter the main spring has been wound thefdirection of rotation of the shaft 15 is reversed which will reverse the drum 19 and the disk 29 causing the pawls 30 to engage in the recesses 28 in the drum 22L winding the alarm spring. 1

Thus it will be seen that in the provision of my spring winding mechanism for clocks a practically unlimited space is provided for,

V the springs thereby permitting the installing "require amaterial increase in the cost.

From the above description taken in connection wlth the accompanymg draw ngs,

it is thought that a clear and comprehensive understanding of the construction, operation and advantages of my invention may be had, and while I have shown and described the device as embodying a specific structure,

I desire that it be understood that such changes may be made in :saidstructure as do not depart from thespi-ritand scope of the invention as claimed;

Having thus fully described my invention, what I claim 'a's new and desireto secure by Letters Patent, is

In a spring winding mechanism, a main shaft, a main sprin rec-eivi ngdrum fixedly mounted on the shaft, a sleeve -loosely mounted on the drum, a pivoted pawlcarried by "the sleeve engageab'le 1n a recess in said drum for connecting the sleeve to the drum upon rotation of the latterin a certain direction, a'disk'fixedjly mounted on the main "shaft adjacent one end of said drum, spring pawls'stmick outwarc lly from said disk, an alarm spring receiving drum loosely 'mounted on the main shaft ad acent said first-drum having one'end thereof formed with recesses to receive the sprlng pawls' on the dlslr whereby to permit the transmission of rotary motion 'ther'eto,"at times, and a winding shaft arranged in spaced relation to said main shaft and connectedthereto, asand for the purpose set forth.

' lintestimonywh of liaiffix mysignatute hereto.

orm. :BQYLE.

Copies of this patent may -be-obtainedfor five cents each, by addres sing the Qonimissionei' of Patents.

Washington, D. G. 

